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84 条记录 (耗时 0.018 秒)

    AUTOMATED ONLINE MINERAL SLURRY AND PROCESS WATER PH ANALYZER, QUANTITATIVE VOLUMETRIC TITRATION ANALYZER, AND LIQUID HARDNESS ANALYZER
    15.
    发明公开
    AUTOMATED ONLINE MINERAL SLURRY AND PROCESS WATER PH ANALYZER, QUANTITATIVE VOLUMETRIC TITRATION ANALYZER, AND LIQUID HARDNESS ANALYZER 审中-公开

    公开(公告)号：US20230393076A1

    公开(公告)日：2023-12-07

    申请号：US18021787

    申请日：2021-08-18

    申请人： THE SASKATCHEWAN RESEARCH COUNCIL

    发明人： Ruijun SUN ,  WILLIAMS David ,  MCGILP Lesley

    IPC分类号： G01N21/80 ,  G01N1/20 ,  G01N1/38 ,  G01N33/18

    CPC分类号： G01N21/80 ,  G01N1/2035 ,  G01N1/38 ,  G01N33/1853 ,  G01N2001/2057 ,  G01N2001/4088

    摘要： Automated analyzers to measure or determine parameters in mineral slurries or process water, in particular to online and automated analyzers to measure pH, or to perform quantitative volumetric titrations relying on spectra absorbance of a liquid extracted from titrant and titrant mixture to determine the endpoint of titration, such as the measurement of liquid hardness in mineral slurries or process water. An automated pH analyzer may include a processor operable to manage the operations associated with the apparatus, an automated sampler coupled to the vessel or conduit and operable to extract a sample of a determined volume of the slurry or process water from the vessel or conduit, the automated sampler being under control of the processor, a water source under control of the processor and operable to deliver a known volume of water of a known pH into the sample, a mixing chamber that receives the known volume of water and the sample, an agitator operable to agitate the sample and the known volume of water in the mixing chamber to produce a diluted sample mixture, an automated filter operable to extract an aliquot of the diluted sample mixture from the mixing chamber and to filter the aliquot to produce a filtrate, a pH probe after the automated filter to measure the pH of filtrate, and a pH probe within the mixing chamber operable to measure a pH of the diluted sample mixture. The measurement is used to calculate the pH of the extracted sample, and to alter in near real time a process control of the a mineral processing operation related to the mineral slurry or process water.

    Concentration-factor measurement device and method
    17.
    发明授权
    Concentration-factor measurement device and method 有权

    公开(公告)号：US10041924B2

    公开(公告)日：2018-08-07

    申请号：US15304762

    申请日：2015-04-01

    申请人： KURITA WATER INDUSTRIES LTD.

    发明人： Shintarou Mori ,  Yukimasa Shimura

    IPC分类号： G01N33/18 ,  G01N21/59 ,  G01N27/06

    CPC分类号： G01N33/1853 ,  G01N21/59 ,  G01N27/06 ,  G01N33/182

    摘要： Provided are a concentration-factor measurement device and method for accurately calculating a concentration factor of circulating water, and a method for measuring a water-quality index value of the circulating water. The concentration-factor measurement device includes a light-absorbance measurement unit (1) for measuring absorbance by irradiating each of cells (12A-12C) with light, and an electrode measurement unit (2) equipped with electrodes (16, 17) that are inserted into a water sample in a container (20). For each item of water quality, the device calculates a concentration factor on the basis of a measured value measured when the water sample (W) is the circulating water, and a measured value measured when the water sample (W) is makeup water. A plurality of concentration factors are calculated on the basis of the measured values for plural items of water quality. Hence an accurate concentration factor can be obtained.

    AQUEOUS SAMPLE FLUID MEASUREMENT AND ANALYSIS
    18.
    发明申请
    AQUEOUS SAMPLE FLUID MEASUREMENT AND ANALYSIS 审中-公开

    公开(公告)号：US20170097300A1

    公开(公告)日：2017-04-06

    申请号：US15281678

    申请日：2016-09-30

    申请人： Hach Company

    发明人： Zhao Lu ,  Brian Harmon

    IPC分类号： G01N21/27 ,  G01N33/18

    CPC分类号： G01N21/27 ,  G01N21/78 ,  G01N33/1853 ,  G01N2201/0221 ,  G01N2201/12

    摘要： An embodiment provides a method for determining a concentration of an analyte in a fluid sample, including: introducing a fluid sample into a measurement chamber; operating a measurement device to introduce light of a first wavelength to the fluid sample; measuring, with a detector, absorbance of the light of the first wavelength with respect to the fluid sample; operating the measurement device to introduce light of a second wavelength to the fluid sample; measuring, with the detector, absorbance of the light of the second wavelength with respect to the fluid sample; determining, using a processor of the measurement device, an absorbance ratio of the fluid sample using both the measured absorbance of the light of the first wavelength and the measured absorbance of the light of the second wavelength; and providing, via an output device, a determined concentration value for the fluid sample that correlates to the absorbance ratio. Other aspects are described and claimed.

    CONCENTRATION-FACTOR MEASUREMENT DEVICE, CONCENTRATION-FACTOR MEASUREMENT METHOD, AND WATER-QUALITY-INDEX-VALUE MEASUREMENT METHOD
    19.
    发明申请
    CONCENTRATION-FACTOR MEASUREMENT DEVICE, CONCENTRATION-FACTOR MEASUREMENT METHOD, AND WATER-QUALITY-INDEX-VALUE MEASUREMENT METHOD 审中-公开
    浓度因子测量装置，浓度因子测量方法和水质指数测量方法

    公开(公告)号：US20170038358A1

    公开(公告)日：2017-02-09

    申请号：US15304762

    申请日：2015-04-01

    申请人： KURITA WATER INDUSTRIES LTD.

    发明人： Shintarou MORI ,  Yukimasa SHIMURA

    IPC分类号： G01N33/18 ,  G01N21/59 ,  G01N27/06

    CPC分类号： G01N33/1853 ,  G01N21/59 ,  G01N27/06 ,  G01N33/182

    摘要： Provided are a concentration-factor measurement device and method for accurately calculating a concentration factor of circulating water, and a method for measuring a water-quality index value of the circulating water. The concentration-factor measurement device includes a light-absorbance measurement unit (1) for measuring absorbance by irradiating each of cells (12A-12C) with light, and an electrode measurement unit (2) equipped with electrodes (16, 17) that are inserted into a water sample in a container (20). For each item of water quality, the device calculates a concentration factor on the basis of a measured value measured when the water sample (W) is the circulating water, and a measured value measured when the water sample (W) is makeup water. A plurality of concentration factors are calculated on the basis of the measured values for plural items of water quality. Hence an accurate concentration factor can be obtained.

    摘要翻译： 提供了一种用于精确计算循环水的浓度系数的浓度因子测量装置和方法，以及用于测量循环水的水质指标值的方法。 浓度因子测量装置包括用于通过用光照射单元（12A-12C）来测量吸光度的吸光度测量单元（1）和装备有电极（16,17）的电极测量单元（2） 插入容器（20）中的水样中。 对于每个水质项目，设备基于水样（W）是循环水时测量的测量值和当水样（W）补水时测量的值）来计算浓度系数。 基于多个水质的测量值来计算多个浓度因子。 因此，可以获得准确的浓度因子。